Frank put the medicine into a top drawer to make sure it would not be           to the kids.

He volunteered to work in a remote mountainous village in West China last year, which is still _____ on foot now.

His little daughter was so __________that he could easily pick her out in the crowd. 

 Speech is ______ heard when it is given in a clear voice just slightly louder than normal.

Judging from his _______ look, I know it is a very _____ situation to her.